From 3d46eb8e836492ac7b89919250d2bc8a95a178e9 Mon Sep 17 00:00:00 2001
From: James Crake-Merani <James.Crake-Merani@stfc.ac.uk>
Date: Fri, 11 Oct 2024 11:22:02 +0100
Subject: [PATCH] Fixed simplificiation of 2(2x).

---
 sasdata/quantities/operations.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sasdata/quantities/operations.py b/sasdata/quantities/operations.py
index 133c33e..a54de90 100644
--- a/sasdata/quantities/operations.py
+++ b/sasdata/quantities/operations.py
@@ -546,6 +546,9 @@ def _clean_ab(self, a, b):
             # Convert constant "a"*"b" to "a*b"
             return Constant(a.evaluate({}) * b.evaluate({}))._clean()
 
+        elif isinstance(a, ConstantBase) and isinstance(b, Mul) and isinstance(b.a, ConstantBase):
+            return Mul(Constant(a.evaluate({}) * b.a.evaluate({})), b.b)
+
         elif isinstance(a, Inv) and isinstance(b, Inv):
             return Inv(Mul(a.a, b.a))